Super hydrophobic surface of polytetrafluoroethylene  fabricated by picosecond laser and phenomenon of total internal reflection underwater

Yijian Jiang; Wenshen Cao; Yan Zhao; Yan Wu; Lingfei Ji

doi:10.1117/12.2078425

12 March 2015 Super hydrophobic surface of polytetrafluoroethylene fabricated by picosecond laser and phenomenon of total internal reflection underwater

Yijian Jiang, Wenshen Cao, Yan Zhao, Yan Wu, Lingfei Ji

Author Affiliations +

Proceedings Volume 9351, Laser-based Micro- and Nanoprocessing IX; 93511J (2015) https://doi.org/10.1117/12.2078425
Event: SPIE LASE, 2015, San Francisco, California, United States

Abstract

A groove-shaped array with average 25 μm interval, 25 μm wall thickness, 75 μm depth and a columnar array with average 30 μm side length, 25 μm interval, 43 μm depth are processed by 1064 nm picosecond laser on polytetrafluoroethylene (PTFE) surface at room temperature. The water contact angle of modified PTFE surface can reach 167^°, which show super hydrophobic surface of PTFE is prepared. It is observed super hydrophobic surface reflects metal luster underwater through the glassware when super hydrophobic PTFE entirely immerses in pure water. The experiment conducts super hydrophobic surface will enhance intensity of reflection of visible light underwater, which is due to total internal reflection of super hydrophobic surface und erwater.

Citation Download Citation

Yijian Jiang, Wenshen Cao, Yan Zhao, Yan Wu, and Lingfei Ji "Super hydrophobic surface of polytetrafluoroethylene fabricated by picosecond laser and phenomenon of total internal reflection underwater", Proc. SPIE 9351, Laser-based Micro- and Nanoprocessing IX, 93511J (12 March 2015); https://doi.org/10.1117/12.2078425

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